Commit 002c8054 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

[PATCH] libata: implement ata_dev_absent() 



For the time being we cannot use ata_dev_present() as it was renamed
to ata_dev_enabled() but we still need presence test.  Implement
negation of the test.  Conveniently, the negated result is needed in
more places.  This is suggested by Jeff Garzik.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 852ee16a

include/linux/libata.h

+10 −0
Original line number Diff line number Diff line
@@ -682,6 +682,11 @@ static inline unsigned int ata_class_disabled(unsigned int class) 
	return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP;

}



static inline unsigned int ata_class_absent(unsigned int class)

{

	return !ata_class_enabled(class) && !ata_class_disabled(class);

}



static inline unsigned int ata_dev_enabled(const struct ata_device *dev)

{

	return ata_class_enabled(dev->class);
@@ -692,6 +697,11 @@ static inline unsigned int ata_dev_disabled(const struct ata_device *dev) 
	return ata_class_disabled(dev->class);

}



static inline unsigned int ata_dev_absent(const struct ata_device *dev)

{

	return ata_class_absent(dev->class);

}



static inline u8 ata_chk_status(struct ata_port *ap)

{

	return ap->ops->check_status(ap);